Rewritten TLS howto

[Tronic]

Expanded and clarified existing text, added the new features implemented in sanic-org/sanic#2270

The HTTP to HTTPS example was broken. Patched by using multiprocessing, but might need an update once that can be done without spawning extra processes. Also, neither app.url_for nor request.url_for is really suited for this, while a simple format string gets the job done nicely.

[sjsadowski]

@Tronic is this ready to come out of draft?

[Tronic]

@sjsadowski This must not be merged until after the next Sanic release with the TLS PR included (probably 21.12) is out. Maybe the docs should also mention that most of these options are new in this specific version.

[miss85246]

Please give me some time. I need to check to see if there are any changes in the Chinese document. @sjsadowski @Tronic

[Tronic]

@miss85246 Nearly all text has been rewritten. I recommend you copy&paste the English text to https://www.deepl.com/translator which does pretty good AI translation and then fix by hand.

@miss85246 几乎所有的文字都被重写了。我建议你把英文文本复制&粘贴到 https://www.deepl.com/translator ，它的人工智能翻译做得相当好，然后用手修正。